19 U.S.C. § 4701
In this subchapter:
(2) Environmental obligations The term “environmental obligations” means obligations relating to the environment under—
(Pub. L. 116–113, title VIII, § 801, , 134 Stat. 90.)
This subchapter, referred to in text, was in the original “this title”, meaning title VIII of Pub. L. 116–113, , 134 Stat. 90, which is classified principally to this subchapter. For complete classification of title VIII to the Code, see Tables.